Elitegroup MB40II ID 1 - Manual (Page 67)

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Troubleshooting
Your computer has been fully tested and complies with the system
specifications before shipping. However, incorrect operations
and/or mishandling may cause problems.
This chapter provides a reference for identifying and correcting
common hardware and software problems that you may encounter.
When you encounter a problem, you should first try to go through
the recommendations in this chapter. Instead of returning the
computer and waiting for repair, you may easily solve the problems
by considering the following scenarios and possible solutions. If
the error continues, contact your reseller for service information.
Before taking further actions, consider the following suggestions:
Check to see if the problem persists when all the
external devices are removed.
Check to see that the blue light indicator on the AC
adapter is lit.
Check to see the power cord is properly plugged to the
wall outlet and to the computer.
Check to see the power indicator of the computer is on.
Check to see if your keyboard is operational by pressing
and holding any key.
Check for any incorrect or loose cable connections.
Make sure the latches on the connectors latch securely
on to the receptor end.
Be sure you have not performed an incorrect setting on
the hardware devices in the BIOS Setup utility. A faulty
setting may cause the system to misbehave. If you are
not sure of the changes you made, try to restore all the
settings to factory defaults.